Pulmonary surfactant prevents exocytosis that is induced by PolymyxinB.

<p>Fluorescence (lyso tracker green) scattergram of alveolar type II cells after 5 h incubation with mixtures of modified porcine surfactant (SF) and/or Polymyxin B (PxB), 30 min after staining of lamellar bodies, compared to controls (DMEM). Fluorescence in cells exposed to PxB is significantly reduced compared to DMEM, SF or in mixture with SF. Bars show mean ± SD, n = 14–16. *: p<0.01 vs. DMEM, SF and SF plus PxB.